Installation of IPS and DS:
Please refer below links for both IPS and DS Installation.
IPS Installation:
DS Installation:
http://scn.sap.com/community/data-services/blog/2012/11/27/data-services-40-sp1-installation
Once done with Both IPS and DS installation, we need to follow below steps to create the repository and user with appropriate access.
- Repository creation
Before creating the repository we need to get the Database details with full or admin access to user on particular DB
Once we get the Database details please navigate to SAP Business Objects Data Services folder from All Programs and select Data Services Repository Manager.
And provide the below required details in fields and click on create.(For local repository)
Once repository is created we need to assign Job server to repository.
2.Assigning Job Server to Repository
Select Data services Server Manager from All Programs
Click on Configuration Editor
click on add
Give name for the fields Job Server name and leave Port number as it is (Those are default)
Once we give the Job server name then select Add button to assign the repository database details to Job Server
And provide DB details in all fields, click on apply and ok.
3.Registering the repository in CMC with DB details
Select Information platform services Central Management from All Programs
Then you will be navigate to Web console link
Login into the CMC with Admin credentials
And select Data services from drop down list
And click on below highlighted box
And enter all details repository name and DB Details and click on test connection then save then repository will be registered in CMC
4.User creation and permissions
Select Information platform services Central Management from All Programs
And select Users and Groups from drop down list
And click on below highlighted one
Enter all the details and click on create and close
Once user is created provide him related access (Designer (Read/Write)/Console)
Right click on particular user and click on Join Group
And select data services designer (Designer window access),monitor(Management console monitor access) and operator access(Execution access from management console) from drop down list
And click on OK
Now user is having read access to repositories from designer.
If we want to give full access to this user for particular repository, please follow below steps.
Select data services from drop down list and select particular repository for which you want to give full access to user
Right click on repository and select user security option
Next click on add principals
Select the user from list for which you want to provide full access to this user
Click on Add and assign security
Select full control and click on apply.
5.Once we complete all above steps try to login to designer to cross check.
Cheers 
Sagar T